java代理实现domino web邮件下载

【背景】

           近日在研究domino web邮件下载功能,下载的邮件可以导入foxmail、outlook邮件客户端,下载的邮件格式为eml。

【参考代码】(需要下载jmail.jar包)

private void makeEml(String unid) {
		Document memo=null;
		RichTextItem body=null;
		try {			
			memo = maildb.getDocumentByUNID(unid);
			String mailtime=((String) memo.getCreated().getLocalTime());
			String d_email = memo.getItemValueString("From");
			Vector v_to = memo.getItemValue("SendTo");			
			Vector v_cc = memo.getItemValue("CopyTo");
			Vector v_bcc = memo.getItemValue("BlindCopyTo");
						
			String m_subject = memo.getItemValueString("Subject");
			String m_text = memo.getItemValueString("Body");

			Properties props = new Properties();
			Session session = Session.getInstance(props, null);

			//System.out.println("-----00000000------");
			try {				
				MimeMessage msg = new MimeMessage(session);
				msg.setSubject(m_subject);
				
				//msg.setFrom(new InternetAddress(javax.mail.internet.MimeUtility.encodeText(d_email,"UTF-8", "B").replaceAll(" ", "")));

				msg.setFrom(new InternetAddress(javax.mail.internet.MimeUtility.encodeText((String)d_email,"UTF-8", "B").replaceAll(" ", "")));

				//System.out.println("-----111111------");
				for (int i=0; i<v_to.size(); i++){
					System.out.println("-----111111---0000---="+javax.mail.internet.MimeUtility.encodeText((String) v_to.elementAt(i),"UTF-8", "B").replaceAll(" ", ""));
					InternetAddress[] toaddress = InternetAddress.parse(javax.mail.internet.MimeUtility.encodeText((String) v_to.elementAt(i),"UTF-8", "B").replaceAll(" ", ""));
                        
					msg.addRecipients(Message.RecipientType.TO, toaddress);
					//msg.addRecipients(Message.RecipientType.TO, toaddress);
					//System.out.println("-----111111---1111--222-");
				}				
				for (int i=0; i<v_cc.size(); i++){
					InternetAddress[] ccaddress = InternetAddress.parse(javax.mail.internet.MimeUtility.encodeText((String) v_cc.elementAt(i),"UTF-8", "B").replaceAll(" ", ""));
					msg.addRecipients(Message.RecipientType.CC, ccaddress);
				}	

				//System.out.println("-----111111--333----");
				for (int i=0; i<v_bcc.size(); i++){
					InternetAddress[] bccaddress = InternetAddress.parse(javax.mail.internet.MimeUtility.encodeText((String) v_bcc.elementAt(i),"UTF-8", "B").replaceAll(" ", ""));
					msg.addRecipients(Message.RecipientType.BCC, bccaddress);
				}				

				MimeBodyPart p1 = new MimeBodyPart();
				p1.setText(m_text);

				Multipart mp = new MimeMultipart();
				mp.addBodyPart(p1);

				String extractMimePath=extractPath+memo.getNoteID()+"/";
				File extractDir2 = new File(extractMimePath);
				extractDir2.mkdirs();

				MIMEEntity mime = memo.getMIMEEntity();
				
				if (mime != null) {				
					MimeBodyPart p2 = new MimeBodyPart(mime.getInputStream());
					mp.addBodyPart(p2);
				} else {
                         //System.out.println("Body="+m_text);
                         //System.out.println("Body="+memo.getFirstItem("Body").getType())
				     body = (RichTextItem) memo.getFirstItem("Body");
					Vector v = body.getEmbeddedObjects();
					Enumeration e = v.elements();
					while (e.hasMoreElements()) {
						eo = (EmbeddedObject) e.nextElement();
						filename = eo.getName();					
						eo.extractFile(extractMimePath + filename);
						FileDataSource fds = new FileDataSource(extractMimePath
								+ filename);						
						MimeBodyPart p2 = new MimeBodyPart();
						p2.setDataHandler(new DataHandler(fds));
						p2.setHeader("Content-Transfer-Encoding", "Base64");	
						p2.setFileName(MimeUtility.encodeText(filename));
						mp.addBodyPart(p2);
					}					
				}

				msg.setContent(mp);				
				File emlFile = new File(extractPath+StringFilter(m_subject+" "+mailtime)+".eml");
		    	//File emlFile = new File(extractPath+memo.getNoteID()+".eml");
				emlFile.createNewFile();
				FileOutputStream outFile = new FileOutputStream(emlFile);
				msg.writeTo(outFile);
				outFile.close();
				
				deleteDir(extractDir2);
				
			} catch (MessagingException mex) {
				deleteDir(extractDir2);
				mex.printStackTrace();						
			}
		} catch (Exception e) {
			e.printStackTrace();			
		}finally{
			recycleRes(eo);
			recycleRes(body);
			recycleRes(memo);						
			}
	}
	

	public static boolean deleteDir(File dir) {
		
		if (dir.isDirectory()) {
			String[] children = dir.list();
			for (int i = 0; i < children.length; i++) {
				boolean success = deleteDir(new File(dir, children[i]));
				if (!success) {
					return false;
				}
			}
		}
		return dir.delete();
	}
	
	public   static   String StringFilter(String   str)     {     
	    	String regEx="[`~!@#$%^&*()+=|{}':;',\\[\\]\\\\.<>/?~!@#¥%……&*()——+|{}【】‘;:”“’。,、?]";  
	    	Pattern   p   =   Pattern.compile(regEx);     
	    	Matcher   m   =   p.matcher(str); 
          //m=m.replaceAll("\\\\","");
	    	return   m.replaceAll("").trim();     
	  } 
jar包下载地址:jar包下载


java代理实现domino web邮件下载

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